Parliamentary elections were held in Estonia on 1 March 2015. Advance voting was held between 19 and 25 February with a turnout of 33 percent.[1] The results were a victory for the ruling Reform Party.

The 101 members of the Riigikogu were elected by proportional representation in twelve multi-member constituencies. The seats were allocated using a modified D'Hondt method. Parties had to pass a nationwide threshold of 5%, but if the number of votes cast for an individual candidate exceeded or equalled the simple quota (obtained by dividing the number of valid votes cast in the electoral district by the number of mandates in the district), they were elected.

Poll results are listed in the table below in reverse chronological order, showing the most recent first. The highest percentage figure in each poll is displayed in bold, and the background shaded in the leading party's color. In the instance that there is a tie, then no figure is shaded.

The Reform Party started coalition talks with the Social Democrats, Pro Patria and Res Publica Union (IRL) and the Free Party.[3] After nearly three weeks of negotiations, the Free Party left the coalition talks due to disagreements with the Reform Party and the IRL.[4] The three remaining parties signed the coalition treaty on 8 April, and the cabinet took office on 9 April.[5]